Fix aggregated stats caclulation for coalesced records

Source/devtools/front_end/timeline/TimelineView.js

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  * Copyright (C) 2012 Intel Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 322 matching lines @@
      * @param {?WebInspector.TimelinePresentationModel.Record} presentationRecord
      */
     _selectRecord: function(presentationRecord)
     {
         if (presentationRecord.coalesced()) {
             // Presentation record does not have model record to highlight.
             this._innerSetSelectedRecord(presentationRecord);
             var aggregatedStats = {};
             var presentationChildren = presentationRecord.presentationChildren();
             for (var i = 0; i < presentationChildren.length; ++i)
-                WebInspector.TimelineUIUtils.aggregateTimeByCategory(aggregatedStats, presentationChildren[i].record().aggregatedStats);
+                WebInspector.TimelineUIUtils.aggregateTimeByCategory(aggregatedStats, presentationChildren[i].record().aggregatedStats());
             var idle = presentationRecord.record().endTime() - presentationRecord.record().startTime();
             for (var category in aggregatedStats)
                 idle -= aggregatedStats[category];
             aggregatedStats["idle"] = idle;
             var pieChart = WebInspector.TimelineUIUtils.generatePieChart(aggregatedStats);
             this._delegate.showInDetails(WebInspector.TimelineUIUtils.recordStyle(presentationRecord.record()).title, pieChart);
             return;
         }
         this._delegate.select(WebInspector.TimelineSelection.fromRecord(presentationRecord.record()));
     },
@@ skipping 936 matching lines @@
             this._element.classList.remove("hidden");
         } else
             this._element.classList.add("hidden");
     },
 
     _dispose: function()
     {
         this._element.remove();
     }
 }